APA (7th ed.) Citation

Knight, M., & Sullivan, E. (2010). Variation in caesarean delivery rates.

Chicago Style (17th ed.) Citation

Knight, M., and E. Sullivan. Variation in Caesarean Delivery Rates. 2010.

MLA (9th ed.) Citation

Knight, M., and E. Sullivan. Variation in Caesarean Delivery Rates. 2010.

Warning: These citations may not always be 100% accurate.